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An anycast method and system based on routing and rewriting in NDN

A routing and router technology, applied in the field of named data network, can solve the problem of being unable to meet flexible and changeable anycast requirements, and achieve the effect of solving scalability problems

Active Publication Date: 2019-04-30
NANJING NORMAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing NDN transmission mode only provides a simple anycast mechanism based on anycast routing, which cannot meet the flexible and changeable anycast requirements.

Method used

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  • An anycast method and system based on routing and rewriting in NDN
  • An anycast method and system based on routing and rewriting in NDN
  • An anycast method and system based on routing and rewriting in NDN

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Embodiment Construction

[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0030] Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of said features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, Integers, steps, operations, elements, components, and / or groups thereof. It will be understoo...

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Abstract

The invention discloses an anycast method and system based on routing and rewriting in NDN. The method includes: the client sends a first request to the network; the intermediate router forwards the first request to a scheduler of a certain server group based on anycast routing; the scheduler selects a server in the service group according to a first preset strategy; The scheduler rewrites the first request into a second request according to the agreement between the scheduler and the server; the scheduler forwards the second request to the selected server; the server returns the first response message to the scheduler; the scheduler The protocol between rewrites the first response message into a second response message; the scheduler returns the second response message to the client. The method and system of the present invention can satisfy diversified anycast requirements in the NDN network without destroying the forwarding logic of the forwarding engine of the NDN content router.

Description

technical field [0001] The present invention relates to the technical field of Named Data Networking (NDN), in particular to an anycast method and system based on routing and rewriting in NDN. Background technique [0002] At present, users' access to the Internet has changed from point-to-point communication to content acquisition. The traditional TCP / IP network only transmits content, but does not perceive content, resulting in a large amount of redundant traffic transmission on the network. In order to solve the content explosion caused by content acquisition, the research community proposes a content-centric network NDN, which realizes the decoupling of content and address, as well as the sender and receiver, and provides ubiquitous built-in cache to satisfy users' requirements for content. Asynchronous access with heavy tail characteristics. [0003] There are many large-scale services with billions of dollars in the existing Internet, such as Google, Facebook, WeChat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/08H04L12/741H04L45/74
CPCH04L45/74H04L67/63
Inventor 张国强卢倚霞齐德胜高茜
Owner NANJING NORMAL UNIVERSITY
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